Fixing a few little issues with new 'status' option on calendar viz,
specifically when it's not set (as it's optional).  Code was asusming it
would always be set.
Merge branch 'joomla3' of github.com:Fabrik/fabrik into joomla3
Merge branch 'joomla3' of github.com:Fabrik/fabrik into joomla3
Adding tabs template to detail view